[IOS][OR] Move result Wrapping to the popup controller

This CL moves the wrapping from the mediator to the controller, the
mediator will now get the wrapped result directly passed from the
controller.

Bug: 399042549
Change-Id: I0a561ae170ab6e232ec7e82516232fff426f261b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6347521
Commit-Queue: Ameur Hosni <ameurhosni@google.com>
Auto-Submit: Ameur Hosni <ameurhosni@google.com>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1431994}